whats the biggest...

[ShoreMan]

...diameter tire you can put on without lifting the truck or having them rub fenders?? my whole truck is stock right now. thanks

jake

[Banshee34]

Do you have a leveling kit?

[sea71]

Depending on the year of your truck(99-03) you can run 315s with a leveling kit, and run 285s stock. The 315s might hit the leafs with a full lock turn to the right, but you gotta lock it out to make me rub.(Again thats with a adda leaf leveling kit, or any other for that matter)

[fyreman]

I ran 305/70's on my '99 with no lift. I took a couple of zip-ties and pulled the plastic liner back cuz they barely rubbed at full turn. I am now running them on my '00 with stock lift and it's the same way. I don't think you can run 315/75's on the stock. Could be wrong though.

[lilredpowerstroke]

I ran 37's with no lift. Just depends on how much you wanna cut and grind off.

[99Smokin73Stroker]

That's what I was going to say, you can cut and grind, stick on some bushwacker cut-out flares and run some good size tires. I have seen stock F350's run 35"+

[Cobra3824]

Right now my F350 extended cab is running BF Goodrich All Terrain 315/75R16 with stock wheels and stock suspension and I'm just barely rubbing on the pass. side when I cut the wheel all the way to the left. Nothing on the driver's side tho...